225747045820 has 12 divisors (see below), whose sum is σ = 474068796264. Its totient is φ = 90298818320.

The previous prime is 225747045817. The next prime is 225747045859. The reversal of 225747045820 is 28540747522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5643676126 + ... + 5643676165.

It is an arithmetic number, because the mean of its divisors is an integer number (39505733022).

Almost surely, 2^225747045820 is an apocalyptic number.

225747045820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225747045820 is an abundant number, since it is smaller than the sum of its proper divisors (248321750444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225747045820 is a wasteful number, since it uses less digits than its factorization.

225747045820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287352300 (or 11287352298 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 46.

The spelling of 225747045820 in words is "two hundred twenty-five billion, seven hundred forty-seven million, forty-five thousand, eight hundred twenty".